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d= 110 x 7/22
d = 35cm
Keliling Lingkaran=110cm
2.phi.r=110cm
2.22/7.r=110cm
22/7.r=110cm/2=55cm
22r=55cm.7=385cm
r=385/22=17,5
Dit d ?
d=2.r
d=2.17,5
d=34